What were the notable Go updates?

all: turn on cgo/external linking for linux/ppc64, windows: add NtSetEaFile, NtQueryEaFile and NtQueryInformationFile, and net/http: fix hang in TestTransportClosesBodyOnError/h3.

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The Wire · Showcase

PPC64 LINUX GETS FULL CGO SUPPORT, WINDOWS EXTENDED ATTRIBUTES LAND

By RepoJournal · Filed 06:01 UTC on May 14, 2026 · About Go

Go is standardizing its PowerPC implementation across endianness while Windows developers gain syscall access to extended file attributes.

The biggest move: linux/ppc64 is ditching its architectural hacks and switching to full cgo/external linking support [1], bringing it into feature parity with ppc64le. The ELFv2 ABI alignment means the ppc64x relocation code got a significant cleanup—no more special cases, just clean bi-endian support. This unblocks cgo workflows that were previously gated on big-endian PowerPC. Meanwhile, golang/sys added Windows extended attribute syscalls [2] (NtSetEaFile, NtQueryEaFile, NtQueryInformationFile), matching what Unix devs already had with Fsetxattr/Fgetxattr. Library authors targeting Windows now have the primitives they need. On the test front, http/3 got a critical hang fix [3] where stream resets could leave TestTransportClosesBodyOnError waiting forever. A few doc fixes [4][5] landed, and the go command gained a constant [6] preparing for future go.mod simplification in 1.27. pkgsite tightened up timing comparisons [7] to prevent test flakiness around commit times.

Action items

→ Test your ppc64/linux cgo builds against tip — external linking is live and major assumptions have changed golang/go [plan]
→ If you ship Windows file attribute code, review golang/sys for the new EA syscalls — this is your moment to standardize golang/sys [plan]
→ Run your HTTP/3 tests against the latest tip if you were seeing intermittent hangs golang/go [monitor]

References

[1] all: turn on cgo/external linking for linux/ppc64 golang/go
[2] windows: add NtSetEaFile, NtQueryEaFile and NtQueryInformationFile golang/sys
[3] net/http: fix hang in TestTransportClosesBodyOnError/h3 golang/go
[4] net/netip: fix typo in AddrPort.AppendBinary godoc golang/go
[5] go/ast: fix godoc links golang/go
[6] cmd/go: add constant for requires simplification golang/go
[7] internal/tests/api: ignore TestAPI/db/module commit time golang/pkgsite

Quick answers

What shipped in Go on May 14, 2026?: Go is standardizing its PowerPC implementation across endianness while Windows developers gain syscall access to extended file attributes. In total, 8 commits landed.
What were the notable Go updates?: all: turn on cgo/external linking for linux/ppc64, windows: add NtSetEaFile, NtQueryEaFile and NtQueryInformationFile, and net/http: fix hang in TestTransportClosesBodyOnError/h3.

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